What is optional chaining?
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What is differences in swift 1.x, 2.x, 3.x, 4.x?
What is floating point number in swift? What are the different floating point numbers in swift?
What is the difference between nil and none in swift?
What do you mean by optional chaining in swift?
Is swift faster than java?
What is a lazy var in swift?
What is lazy loading in ios swift?
What are swift properties?
What is the use of static keyword in swift?
Does apple use swift internally?
What is Initialization ?
Explain how you define variables in Swift language?